# cdiff(1)

## NAME

         cdiff - context diff

## SYNOPSIS

         cdiff [-cn] oldfile newfile

## OPTIONS

         -c   Provide n lines of context

## EXAMPLES

         cdiff old new >f    # Write context diff on f

         cdiff -c1 old new >f
                             # Use only 1 line of context

## DESCRIPTION

         Cdiff produces a context diff by  first  running  diff  and  then  adding
         context.  Some  update  programs,  like  patch,  can use context diffs to
         update files, even in the presence of other, independent changes.

## SEE ALSO

         cmp(1), diff(1), patch(1).